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SEMICOSIL® 917

SEMICOSIL® 917 is a shear-thining, addition-curing, 2-part silicone rubber that cures to a soft silicone gel when mixed with ELASTOSIL® CAT PT, ELASTOSIL® CAT PT-F, ELASTOSIL® CAT UV or SEMICOSIL® 950 UV B.



特性

• 10 : 1 mixing ratio
• Shear-thinning
• Fast curing at room temperature with Catalyst PT-F
• Long pot life at room temperature with Catalyst PT
• Extremely fast curing with Catalyst UV
• Shadow cure with SEMICOSIL® 950 UV B
• Low Hardness
• Pronounced tackiness
• Cured properties independent on catalyst
• UV tracer for automated visual inspection

免责声明

所提供之所有信息均基于我们当前所掌握的知识。尽管如此,我们不对其作任何担保、也不承担任何责任,并且保留在任何时候进行技术变更的权利。购买方应在预测试中对所提供之信息以及产品在既定应用中的适应性进行检查。任何时候都必须以合同条款与条件为准。此外,本免责申明还适用于与第三方权利有关之事宜,尤其是在德国境外。

Encapsulation of electronic components for the
automotive and power electronics industries.

All surfaces must be clean and free of contaminants that will inhibit the cure of  ???000010273???.

Examples of inhibiting contaminants are sulfur containing materials, plasticizers, urethanes, amine containing materials and organometallic compounds – especially organotin compounds.

If a substrate’s ability to inhibit cure is unknown, a small-scale test should be run to determine compatibility.

SEMICOSIL® 917 contains the crosslinker, ELASTOSIL® CAT PT, PT-F, UV and SEMICOSIL® 950 UV contains the catalyst. Even traces of the platinum catalyst may cause gelling of the component containing the crosslinker. Therefore tools (spatula, stirrers, etc.) used for handling the catalyst-containing component or the catalyzed compound must not come into contact with this component.


The two components should be thoroughly mixed at a 10 : 1 ratio by weight or volume.


To eliminate any air introduced during dispensing or trapped under components or devices a vacuum encapsulation is recommended.


The system SEMICOSIL® 917 / ELASTOSIL® CAT UV (10:1) is activated by direct UV irradiation. UV irradiation should use emissions in the wavelength range between 250 and 350 nm.

The system SEMICOSIL® 917 / ELASTOSIL® CAT UV (10:1) is activated by direct UV irradiation. UV irradiation should use emissions in the wavelength range between 250 and 350 nm.


Typically D-bulbs (Fe-doped Hg-light sources) using ozone-free quartz should be used and are commercially available. H-bulbs with emissions below 250 nm are not recommended.


Curing time of the UV-active system SEMICOSIL® 917 / ELASTOSIL® CAT UV (10:1) is highly dependent both on the intensity and dose of the UV-light and the spectral intensity distribution. The curing is also dependent on the layer thickness, the optical properties of the substrate and temperature. Increase of the temperature will fasten curing reaction.

 

SEMICOSIL® 917 / ELASTOSIL® CAT UV (10:1) will only cure in directly irradiated areas. The combination
SEMICOSIL® 917 / SEMICOSIL® 950 UV B features same UV reactivity, but additionally ensures that the
silicone also can be cured in shadow areas which are not directly irradiated with light.


For fast cure an oven at elevated temperatures can be used.

储存

SEMICOSIL® 917 should be stored dry and cool in the
tightly closed original container.
The 'Best use before end' date of each batch appears
on the product label.

 


Storage beyond the date specified on the label does
not necessarily mean that the product is no longer
usable. In this case however, the properties required
for the intended use must be checked for quality assurance
reasons.

销售和支持

Wacker Chemicals (China) Co.,Ltd.
Caohejing Hi-Tech Park
200233 Shanghai
中国大陆
+86  21  6130-2000 (电话)
+86 21 6130-2500  (传真)
Contact Sales

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